Retraction note to: Duan, D., Li, B., Sharma, P.K. et al. Sintered Aluminum–Graphene Nano-Bio Composite Materials for the Medical Application. Powder Metall Met. Ceram., 59, 631–640 (2021). https://doi.org/10.1007/s11106-021-00198-1.

This article has been retracted by the Editor-in-Chief at the request of the corresponding author because the authors did not obtain the required permissions for reusing data previously published in [1] and did not include due acknowledgment of the data source for reusing Figure 5.

All authors agree to this retraction

[1] Sunil Kumar Pradhan, Mihir Ranjan Sahoo, Satyajit Ratha, Balaram Polai, Arijit Mitra, Bijoy Sathpathy, Arun Sahu, Subrat Kar, Parlapalli V. Satyam, Pulickel M. Ajayan, and Saroj Kumar Nayak, “Grapheneincorporated aluminum with enhanced thermal and mechanical properties for solar heat collectors,” AIP Advances 10, 065016 (2020). https://doi.org/10.1063/5.0008786.